User interface navigation utilizing pressure-sensitive touch

ABSTRACT

An approach is provided to direct data to different applications based upon the amount of pressure applied by a user of a pressure sensitive touch-enabled screen. In this approach, a touch input is received at a location of the pressure sensitive touch-enabled screen. The various applications currently being displayed at the location are identified along with the physical pressure level (amount of pressure applied) at the location on the pressure sensitive touch-enabled screen. One of the applications running on the device is selected based on the amount of pressure applied and the touch-based input provided by the user is directed to the selected application.

BACKGROUND OF THE INVENTION

1. Technical Field

The present invention relates to navigate between applications using atouch enabled pressure-sensitive display screen.

2. Description of the Related Art

Touch enabled surfaces are input devices that translate the motion andposition of a user's fingers to a relative position on a display screen.Touch pads are commonly integrated in smaller information handlingsystems, such as laptop computer systems, personal digital assistants(PDAs), some portable media players, and some mobile telephone devices.Touch enabled surfaces can be used instead of traditional mouse inputdevices and are preferred in some environments where space is limited,such as when working in confined spaces like that found on commercialairlines. Touch enabled surfaces can also provide display-basedkeyboards where the keys are rendered on the surface and the user typesby touching the key spaces on the display. Using optical touchtechnology, a touch-enabled device functions when a finger or an objecttouches the surface which causes light to scatter. The reflection iscaught with sensors or cameras that send the data to software whichdictates response to the touch, depending on the type of reflectionmeasured. Touch enabled devices can also be made pressure-sensitive bythe addition of a pressure-sensitive coating that flexes differentlydepending on how firmly it is pressed, altering the reflection. Pressuresensors can also be included around the perimeter (e.g., on the corners,etc.) under the display screen so that amount of pressure applied can bedetermined based on the amount of pressure received by the varioussensors.

SUMMARY

An approach is provided to direct data to different applications basedupon the amount of pressure applied by a user of a pressure sensitivetouch-enabled screen. In this approach, a touch input is received at alocation of the pressure sensitive touch-enabled screen. The variousapplications currently being displayed at the location are identifiedalong with the physical pressure level (amount of pressure applied) atthe location on the pressure sensitive touch-enabled screen. One of theapplications running on the device is selected based on the amount ofpressure applied and the touch-based input provided by the user isdirected to the selected application.

The foregoing is a summary and thus contains, by necessity,simplifications, generalizations, and omissions of detail; consequently,those skilled in the art will appreciate that the summary isillustrative only and is not intended to be in any way limiting. Otheraspects, inventive features, and advantages of the present invention, asdefined solely by the claims, will become apparent in the non-limitingdetailed description set forth below.

BRIEF DESCRIPTION OF THE DRAWINGS

The present invention may be better understood, and its numerousobjects, features, and advantages made apparent to those skilled in theart by referencing the accompanying drawings, wherein:

FIG. 1 is a block diagram of a data processing system in which themethods described herein can be implemented;

FIG. 2 provides an extension of the information handling systemenvironment shown in FIG. 1 to illustrate that the methods describedherein can be performed on a wide variety of information handlingsystems which operate in a networked environment;

FIG. 3A is a diagram of a first application, such as a display-basedkeyboard, that can be displayed by the device;

FIG. 3B is a diagram of a second application, such as web page from aweb browser, that can be displayed by the device;

FIG. 3C is a diagram of the pressure sensitive touch-enabled displayscreen displaying two applications, such as a browser application whichis overlaid by another application, such as a display-based keyboard;

FIG. 4 is a flowchart showing configuration steps;

FIG. 5 is a flowchart showing steps taken to provide a layer based userinterface based upon the amount of pressure applied by a user of thepressure sensitive touch-enabled display screen; and

FIG. 6 is a flowchart showing further steps taken to direct input to aselected application when multiple applications are displayed at thelocation corresponding to the user's touch input on the pressuresensitive touch-enabled display screen.

DETAILED DESCRIPTION

The terminology used herein is for the purpose of describing particularembodiments only and is not intended to be limiting of the invention. Asused herein, the singular forms “a”, “an” and “the” are intended toinclude the plural forms as well, unless the context clearly indicatesotherwise. It will be further understood that the terms “comprises”and/or “comprising,” when used in this specification, specify thepresence of stated features, integers, steps, operations, elements,and/or components, but do not preclude the presence or addition of oneor more other features, integers, steps, operations, elements,components, and/or groups thereof.

The corresponding structures, materials, acts, and equivalents of allmeans or step plus function elements in the claims below are intended toinclude any structure, material, or act for performing the function incombination with other claimed elements as specifically claimed. Thedetailed description has been presented for purposes of illustration,but is not intended to be exhaustive or limited to the invention in theform disclosed. Many modifications and variations will be apparent tothose of ordinary skill in the art without departing from the scope andspirit of the invention. The embodiment was chosen and described inorder to best explain the principles of the invention and the practicalapplication, and to enable others of ordinary skill in the art tounderstand the invention for various embodiments with variousmodifications as are suited to the particular use contemplated.

As will be appreciated by one skilled in the art, aspects may beembodied as a system, method or computer program product. Accordingly,aspects may take the form of an entirely hardware embodiment, anentirely software embodiment (including firmware, resident software,micro-code, etc.) or an embodiment combining software and hardwareaspects that may all generally be referred to herein as a “circuit,”“module” or “system.” Furthermore, aspects of the present disclosure maytake the form of a computer program product embodied in one or morecomputer readable medium(s) having computer readable program codeembodied thereon.

Any combination of one or more computer readable medium(s) may beutilized. The computer readable medium may be a computer readable signalmedium or a computer readable storage medium. A computer readablestorage medium may be, for example, but not limited to, an electronic,magnetic, optical, electromagnetic, infrared, or semiconductor system,apparatus, or device, or any suitable combination of the foregoing. Morespecific examples (a non-exhaustive list) of the computer readablestorage medium would include the following: an electrical connectionhaving one or more wires, a portable computer diskette, a hard disk, arandom access memory (RAM), a read-only memory (ROM), an erasableprogrammable read-only memory (EPROM or Flash memory), an optical fiber,a portable compact disc read-only memory (CD-ROM), an optical storagedevice, a magnetic storage device, or any suitable combination of theforegoing. In the context of this document, a computer readable storagemedium may be any tangible medium that can contain, or store a programfor use by or in connection with an instruction execution system,apparatus, or device.

A computer readable signal medium may include a propagated data signalwith computer readable program code embodied therein, for example, inbaseband or as part of a carrier wave. Such a propagated signal may takeany of a variety of forms, including, but not limited to,electro-magnetic, optical, or any suitable combination thereof. Acomputer readable signal medium may be any computer readable medium thatis not a computer readable storage medium and that can communicate,propagate, or transport a program for use by or in connection with aninstruction execution system, apparatus, or device.

Program code embodied on a computer readable medium may be transmittedusing any appropriate medium, including but not limited to wireless,wireline, optical fiber cable, RF, etc., or any suitable combination ofthe foregoing.

Computer program code for carrying out operations for aspects of thepresent disclosure may be written in any combination of one or moreprogramming languages, including an object oriented programming languagesuch as Java, Smalltalk, C++ or the like and conventional proceduralprogramming languages, such as the “C” programming language or similarprogramming languages. The program code may execute entirely on theuser's computer, partly on the user's computer, as a stand-alonesoftware package, partly on the user's computer and partly on a remotecomputer or entirely on the remote computer or server. In the latterscenario, the remote computer may be connected to the user's computerthrough any type of network, including a local area network (LAN) or awide area network (WAN), or the connection may be made to an externalcomputer (for example, through the Internet using an Internet ServiceProvider).

Aspects of the present disclsoure are described below with reference toflowchart illustrations and/or block diagrams of methods, apparatus(systems) and computer program products. It will be understood that eachblock of the flowchart illustrations and/or block diagrams, andcombinations of blocks in the flowchart illustrations and/or blockdiagrams, can be implemented by computer program instructions. Thesecomputer program instructions may be provided to a processor of ageneral purpose computer, special purpose computer, or otherprogrammable data processing apparatus to produce a machine, such thatthe instructions, which execute via the processor of the computer orother programmable data processing apparatus, create means forimplementing the functions/acts specified in the flowchart and/or blockdiagram block or blocks.

These computer program instructions may also be stored in a computerreadable medium that can direct a computer, other programmable dataprocessing apparatus, or other devices to function in a particularmanner, such that the instructions stored in the computer readablemedium produce an article of manufacture including instructions whichimplement the function/act specified in the flowchart and/or blockdiagram block or blocks.

The computer program instructions may also be loaded onto a computer,other programmable data processing apparatus, or other devices to causea series of operational steps to be performed on the computer, otherprogrammable apparatus or other devices to produce a computerimplemented process such that the instructions which execute on thecomputer or other programmable apparatus provide processes forimplementing the functions/acts specified in the flowchart and/or blockdiagram block or blocks.

The following detailed description will generally follow the summary, asset forth above, further explaining and expanding the definitions of thevarious aspects and embodiments as necessary. To this end, this detaileddescription first sets forth a computing environment in FIG. 1 that issuitable to implement the software and/or hardware techniques associatedwith the disclosure. A networked environment is illustrated in FIG. 2 asan extension of the basic computing environment, to emphasize thatmodern computing techniques can be performed across multiple discretedevices.

FIG. 1 illustrates information handling system 100, which is asimplified example of a computer system capable of performing thecomputing operations described herein. Information handling system 100includes one or more processors 110 coupled to processor interface bus112. Processor interface bus 112 connects processors 110 to Northbridge115, which is also known as the Memory Controller Hub (MCH). Northbridge115 connects to system memory 120 and provides a means for processor(s)110 to access the system memory. Graphics controller 125 also connectsto Northbridge 115. In one embodiment, PCI Express bus 118 connectsNorthbridge 115 to graphics controller 125. Graphics controller 125connects to display device 130, such as a computer monitor.

Northbridge 115 and Southbridge 135 connect to each other using bus 119.

In one embodiment, the bus is a Direct Media Interface (DMI) bus thattransfers data at high speeds in each direction between Northbridge 115and Southbridge 135. In another embodiment, a Peripheral ComponentInterconnect (PCI) bus connects the Northbridge and the Southbridge.Southbridge 135, also known as the I/O Controller Hub (ICH) is a chipthat generally implements capabilities that operate at slower speedsthan the capabilities provided by the Northbridge. Southbridge 135typically provides various busses used to connect various components.These busses include, for example, PCI and PCI Express busses, an ISAbus, a System Management Bus (SMBus or SMB), and/or a Low Pin Count(LPC) bus. The LPC bus often connects low-bandwidth devices, such asboot ROM 196 and “legacy” I/O devices (using a “super I/O” chip). The“legacy” I/O devices (198) can include, for example, serial and parallelports, keyboard, mouse, and/or a floppy disk controller. The LPC busalso connects Southbridge 135 to Trusted Platform Module (TPM) 195.Other components often included in Southbridge 135 include a DirectMemory Access (DMA) controller, a Programmable Interrupt Controller(PIC), and a storage device controller, which connects Southbridge 135to nonvolatile storage device 185, such as a hard disk drive, using bus184.

ExpressCard 155 is a slot that connects hot-pluggable devices to theinformation handling system. ExpressCard 155 supports both PCI Expressand USB connectivity as it connects to Southbridge 135 using both theUniversal Serial Bus (USB) the PCI Express bus. Southbridge 135 includesUSB Controller 140 that provides USB connectivity to devices thatconnect to the USB. These devices include webcam (camera) 150, infrared(IR) receiver 148, keyboard and trackpad 144, and Bluetooth device 146,which provides for wireless personal area networks (PANs). USBController 140 also provides USB connectivity to other miscellaneous USBconnected devices 142, such as a mouse, removable nonvolatile storagedevice 145, modems, network cards, ISDN connectors, fax, printers, USBhubs, and many other types of USB connected devices. While removablenonvolatile storage device 145 is shown as a USB-connected device,removable nonvolatile storage device 145 could be connected using adifferent interface, such as a Firewire interface, etcetera.

Wireless Local Area Network (LAN) device 175 connects to Southbridge 135via the PCI or PCI Express bus 172. LAN device 175 typically implementsone of the IEEE 802.11 standards of over-the-air modulation techniquesthat all use the same protocol to wireless communicate betweeninformation handling system 100 and another computer system or device.Optical storage device 190 connects to Southbridge 135 using Serial ATA(SATA) bus 188. Serial ATA adapters and devices communicate over ahigh-speed serial link. The Serial ATA bus also connects Southbridge 135to other forms of storage devices, such as hard disk drives. Audiocircuitry 160, such as a sound card, connects to Southbridge 135 via bus158. Audio circuitry 160 also provides functionality such as audioline-in and optical digital audio in port 162, optical digital outputand headphone jack 164, internal speakers 166, and internal microphone168. Ethernet controller 170 connects to Southbridge 135 using a bus,such as the PCI or PCI Express bus. Ethernet controller 170 connectsinformation handling system 100 to a computer network, such as a LocalArea Network (LAN), the Internet, and other public and private computernetworks.

While FIG. 1 shows one information handling system, an informationhandling system may take many forms. For example, an informationhandling system may take the form of a desktop, server, portable,laptop, notebook, or other form factor computer or data processingsystem. In addition, an information handling system may take other formfactors such as a personal digital assistant (PDA), a gaming device, ATMmachine, a portable telephone device, a communication device or otherdevices that include a processor and memory.

The Trusted Platform Module (TPM 195) shown in FIG. 1 and describedherein to provide security functions is but one example of a hardwaresecurity module (HSM). Therefore, the TPM described and claimed hereinincludes any type of HSM including, but not limited to, hardwaresecurity devices that conform to the Trusted Computing Groups (TCG)standard, and entitled “Trusted Platform Module (TPM) SpecificationVersion 1.2.” The TPM is a hardware security subsystem that may beincorporated into any number of information handling systems, such asthose outlined in FIG. 2.

FIG. 2 provides an extension of the information handling systemenvironment shown in FIG. 1 to illustrate that the methods describedherein can be performed on a wide variety of information handlingsystems that operate in a networked environment. Types of informationhandling systems range from small handheld devices, such as handheldcomputer/mobile telephone 210 to large mainframe systems, such asmainframe computer 270. Examples of handheld computer 210 includepersonal digital assistants (PDAs), personal entertainment devices, suchas MP3 players, portable televisions, and compact disc players. Otherexamples of information handling systems include pen, or tablet,computer 220, laptop, or notebook, computer 230, workstation 240,personal computer system 250, and server 260. Other types of informationhandling systems that are not individually shown in FIG. 2 arerepresented by information handling system 280. As shown, the variousinformation handling systems can be networked together using computernetwork 200. Types of computer network that can be used to interconnectthe various information handling systems include Local Area Networks(LANs), Wireless Local Area Networks (WLANs), the Internet, the PublicSwitched Telephone Network (PSTN), other wireless networks, and anyother network topology that can be used to interconnect the informationhandling systems. Many of the information handling systems includenonvolatile data stores, such as hard drives and/or nonvolatile memory.Some of the information handling systems shown in FIG. 2 depictsseparate nonvolatile data stores (server 260 utilizes nonvolatile datastore 265, mainframe computer 270 utilizes nonvolatile data store 275,and information handling system 280 utilizes nonvolatile data store285). The nonvolatile data store can be a component that is external tothe various information handling systems or can be internal to one ofthe information handling systems. In addition, removable nonvolatilestorage device 145 can be shared among two or more information handlingsystems using various techniques, such as connecting the removablenonvolatile storage device 145 to a USB port or other connector of theinformation handling systems.

FIG. 3A is a diagram of a first application, such as a display-basedkeyboard, that can be displayed by the device. First layer 300 shown inFIG. 3A is, in the example, a display-based keyboard used in a touchenabled screen environment. When displayed, the user can touch thedisplay where a character of function is located and the system providesthe input (e.g., character, control function, etc.) as if the userentered the data at a traditional keyboard.

FIG. 3B is a diagram of a second application, such as web page from aweb browser, that can be displayed by the device. Second layer 310 shownin FIG. 3B is, in the example, a chart with text box input areas forentering “x” and “y” values is being displayed in the web browser. Theuser can select one of the text boxes by touching the desired text boxand can then enter a value by using a keyboard, such as display basedkeyboard 300.

FIG. 3C is a diagram of the pressure sensitive touch-enabled displayscreen displaying two applications, such as a browser application whichis overlaid by another application, such as a display-based keyboard.Overlay presentation 320 shows both layers being displayed with one ofthe layers overlaying the other layer. In the example shown, secondlayer 310 is a background (solid) layer and first layer 300 is shownoverlaid so that both the chart and the display-based keyboard aresimultaneously viewable. When both applications occupy the same locationselected by the user using a touch enabled gesture (e.g., touching thescreen with a finger or stylus, etc.), then the application thatreceives the input is based upon the amount of pressure applied by theuser. For example, the input text boxes on the chart occupy the samelocation as some of the keys on the display-based keyboard. In order tointeract with the first layer (the display-based keyboard), a firstamount of pressure (first physical pressure level) is used. Likewise, inorder to interact with the second layer (the input text boxes on the webbrowser), a second amount of pressure (second physical pressure level)is used. The first pressure can be set to be a heavier or lighterpressure than the second pressure. For example, the first physicalpressure level can be set to a range of lighter pressure levels, whereasthe second physical pressure level can then be set to a range of heavierpressure levels. In this manner, the user can interact with the desireduser interface by using different amounts of physical pressure withouthaving to rearrange the order of the displayed interfaces (e.g., withouthaving to change the “focus” of interfaces, etc.).

FIG. 4 is a flowchart showing configuration steps. Processing commencesat 400 whereupon, at step 410, the user selects the first applicationthat is desired for configuration (e.g., the display-based keyboardapplication, the web browser application, etc.). At step 420, the userselects a layer to apply to the selected application (e.g., the firstlayer, the second layer, the third layer, etc.). At step 425, the layerselected for the selected application is stored in data store 430. Adetermination is made as to whether there are more applications that theuser wishes to configure (decision 440). If there are more applicationsthat the user wishes to configure, then decision 440 branches to the“yes” branch which loops back to select and process the next desiredapplication as described above. This looping continues until the userhas selected all of the desired applications that the user wishes toconfigure, at which point decision 440 branches to the “no” branch. Inone embodiment, a default layer can be assigned to applications thatwere not configured by the user.

At step 450, processing retrieves the first layer (from data store 430)that was assigned to one or more applications (e.g., the first layer,etc.). At step 460, the selected layer is displayed to the user and theuser is prompted to provide a physical pressure level for the selectedlayer along with display attributes. At step 465, the physical pressurelevel is received by the user pressing on the pressure sensitivetouch-enabled display surface whereupon the system records the pressurelevel. At step 470, the display appearance data is received from theuser with the appearance data including factors such as whether thelayer is displayed in the foreground (e.g., “on top” of applications inthe background layer(s)), or background (e.g., “behind” applications inthe foreground layer(s)), and what level of transparency is to beapplied to a foreground layer (e.g., as a percentage with ten percentbeing not very transparent so the foreground layer application is easierto see but more obscures applications in the background layer(s) andninety percent being very transparent so the foreground layerapplication is more difficult to see but provides little visualobstruction to applications in the background layer(s), etc.). At step475, the physical pressure level (e.g., a value representing how hardthe user pressed on the display surface) is stored in data store 480along with the display appearance data provided by the user.

A determination is made as to whether there are more layers that need tobe processed (decision 490). If there are more layers to process (e.g.,the second layer, etc.), then decision 490 branches to the “yes” branchwhich loops back to receive pressure and appearance data for the nextlayer as described above. This looping continues until there are no morelayers to process, at which point decision 490 branches to the “no”branch and configuration processing ends at 495.

FIG. 5 is a flowchart showing steps taken to provide a layer based userinterface based upon the amount of pressure applied by a user of thepressure sensitive touch-enabled display screen. Processing commences at500 whereupon, at step 510, the user invokes an application (e.g., adisplay based keyboard, a web browser, an email application, etc.). Adetermination is made as to whether there are currently multipleapplications with user interfaces running on the device (decision 520).If there are multiple applications running on the device, then decision520 branches to the “yes” branch whereupon, at step 525, the layerassigned to each of the running applications is retrieved from datastore 430 and checked. A determination is made as to whether there areapplications assigned to more than one layer that are currently runningon the device (decision 530). If there is only a single applicationrunning on the device (with decision 520 branching to the “no” branch)or if all of the applications running are at the same level (decision530 branching to the “no” branch), then the application at the locationwhere the user provides the touch-based input receives the inputregardless of the input pressure (if multiple applications are at thesame location on the display but each is assigned to the same level,then in one embodiment, traditional “focus” techniques are used toselect an application and provide input). At step 540, all of theapplications currently running are displayed in a traditional “primary”layer with no applications having a transparency appearancecharacteristic.

Returning to decision 530, if there are multiple applications runningand more than one layer assigned to the set of running applications,then decision 530 branches to the “yes” branch whereupon, at predefinedprocess 550, multiple input layer processing is performed based onpressure sensitivity (see FIG. 6 and corresponding text for processingdetails).

A determination is made as to whether the user has decided to terminateone of the running applications (decision 560). If the user hasterminated a running application, then decision 560 branches to the“yes” branch whereupon, at step 570, the application selected by theuser is terminated. Processing then loops back to check the number ofapplications and number of layers currently running as described above.On the other hand, if the user has not chosen to terminate one of therunning applications, then decision 560 branches to the “no” branch.

A determination is made as to whether the user has decided to invokeanother application (decision 580). If the user has decided to invokeanother application, then decision 580 branches to the “yes” branchwhich loops back to step 510 used to invoke the application and processthe number of applications and number of layers as discussed above. Onthe other hand, if the user has not chosen to invoke anotherapplication, then decision 580 branches to the “no” branch whereupon, atstep 590, the user performs some other layer-based function (e.g.,configuring layer attributes as discussed in FIG. 4, etc.). After theother layer-based function is performed, processing loops back to checkthe number of applications and number of layers currently running asdescribed above.

FIG. 6 is a flowchart showing further steps taken to direct input to aselected application when multiple applications are displayed at thelocation corresponding to the user's touch input on the pressuresensitive touch-enabled display screen. This processing is called frompredefined process 550 shown in FIG. 5. The processing shown in FIG. 6commences at 600 whereupon, at step 610, each of the runningapplications being displayed according to the display attributesassigned to the respective application's layer. Each application's layeris identified by reading the configuration values set in data store 430.Once a layer has been found, the display attributes used for the layerare retrieved from data store 480 (e.g., foreground, background,transparency level, etc.).

At step 620, processing receives a touch input (e.g., touched by afinger, stylus, etc.) on the pressure sensitive touch-enabled displaysurface. At step 625, the location of the touch is retrieved. Adetermination is made as to whether the touch input was directed at anarea of the display occupied by at least one of the running applications(decision 630). If the input was directed at an area of the displayoccupied by at least one of the running application, then decision 630branches to the “yes” branch for further processing.

A determination is made as to whether there are more than one runningapplication currently being displayed at the location of the displaywhere the user provided the touch input (decision 640). If there aremore than one running application currently being displayed at thelocation, then decision 640 branches to the “yes” branch to determinewhich of the running applications should receive the input. At step 650,the physical pressure level that was applied by the user when making thetouch input is retrieved. At step 660, one of the layers is identifiedby comparing the retrieved physical pressure level with the physicalpressure levels configured for the various layers. As previouslydescribed, the physical pressure levels can be grouped into “ranges”(e.g., soft pressure, firm pressure, etc.). At step 670, one of therunning applications is identified based on the identified applicationbeing displayed at the location of the touch input as well as theidentified application having an assigned layer that matches the layercorresponding to the retrieved physical pressure level applied at thetouch location. In one embodiment, the identified application isvisually indicated (e.g., visually making the identified application“blink”, brought completely to the foreground, etc.). In a furtherembodiment, the visually indication of the identified application isperformed for a brief period of time (e.g., one second, etc.) followingthe identification of the application. The visual indication of theidentified application is performed at step 675. At step 680, the touchinput is sent to the identified application for further processing(e.g., touch of a key on a display-based keyboard, touch of an inputtext box on a web browser or form, etc.). Processing then waits for thenext input to arrive at 690. When the next touch-based input arrives,processing loops back to receive and process the input as describedabove.

Returning to decision 640, if only a single application is displayed atthe location of the display where the user touched the display, thendecision 640 branches to the “no” branch. Here, at step 685, input issent to the only application being displayed at this location regardlessof the pressure applied by the user when touching the display screen.Processing then waits for the next input to arrive at 690. When the nexttouch-based input arrives, processing loops back to receive and processthe input as described above.

The looping back to process touch-based inputs continues until the userdirects the input away from a running application. When this occurs,then decision 630 branches to the “no” branch whereupon processingreturns to the calling routine (see FIG. 5) at 695.

While particular embodiments of the present invention have been shownand described, it will be obvious to those skilled in the art that,based upon the teachings herein, that changes and modifications may bemade without departing from this invention and its broader aspects.Therefore, the appended claims are to encompass within their scope allsuch changes and modifications as are within the true spirit and scopeof this invention. Furthermore, it is to be understood that theinvention is solely defined by the appended claims. It will beunderstood by those with skill in the art that if a specific number ofan introduced claim element is intended, such intent will be explicitlyrecited in the claim, and in the absence of such recitation no suchlimitation is present. For non-limiting example, as an aid tounderstanding, the following appended claims contain usage of theintroductory phrases “at least one” and “one or more” to introduce claimelements. However, the use of such phrases should not be construed toimply that the introduction of a claim element by the indefinitearticles “a” or “an” limits any particular claim containing suchintroduced claim element to inventions containing only one such element,even when the same claim includes the introductory phrases “one or more”or “at least one” and indefinite articles such as “a” or “an”; the sameholds true for the use in the claims of definite articles.

What is claimed is:
 1. A method, comprising: receiving an input at alocation on a pressure sensitive touch-enabled screen; identifying atleast first and second applications respectively presenting first andsecond layers at the location, wherein the first layer for the firstapplication is associated with a first range of physical pressure levelsand the second layer for the second application is associated with asecond range of physical pressure levels different from the first rangeof physical pressure levels; identifying a physical pressure level ofthe input on the pressure sensitive to-enabled screen; determining onelayer of the first and second layers to which to direct the input basedon a comparison of the physical pressure level of the input to the firstand second ranges of physical pressure levels; and directing the inputto the determined layer.
 2. The method of claim 1, further comprising:displaying the first layer using a first set of display attributes,wherein the first set of display attributes includes an attribute todisplay the first layer as a solid background; and displaying the secondlayer using a second set of display attributes, wherein the second setof display attributes includes an attribute to display the second layeras an at least partially-transparent overlay on top of the first layerso that both the first and second layers are visible at the location. 3.The method of claim 2, further comprising: preparing a plurality of setsof display attributes, including the first and second sets of displayattributes; and assigning a unique one of the layers to each of theplurality of sets of display attributes.
 4. The method of claim 1,further comprising: receiving a subsequent input at a second location ofthe pressure sensitive touch-enabled screen; determining that a singlelayer is being displayed at the second location; and directing thesubsequent input to the single layer regardless of the physical pressureapplied.
 5. The method of claim 1, further comprising: visuallyindicating the one of the first and second layers to which to direct theinput.
 6. The method of claim 5, wherein the visually indicating ceasesafter a period of time following the reception of the input.
 7. Themethod of claim 1, wherein the layer of the first and second layersdetermined to be the layer to which to direct input is determined bydetermining that the physical pressure level of the input is within therange of one of the first range and the second range.
 8. The method ofclaim 1, wherein the first layer is a browser window for a browserapplication and the second layer is a representation of a keyboard. 9.The method of claim 1, wherein at least one of the first and secondranges are established at least in part based on user input during aconfiguration of the respective application associated with therespective at least one of the first and second ranges to beestablished, the input being input to the display of a first physicalpressure level, the first physical pressure level being used to at leastin part establish the respective range by establishing the respectiverange to include the first physical pressure level.
 10. A computerreadable storage medium that is not a transitory signal, the computerreadable storage medium bearing instructions executable by a processorto: receive an input at a location on a pressure sensitive touch-enabledscreen; identify at least first and second applications respectivelypresenting first and second layers at the location, wherein the firstlayer for the first application is associated with a first range ofphysical pressure levels and the second layer for the second applicationis associated with a second range of physical pressure levels differentfrom the first range of physical pressure levels; identify a physicalpressure level of the input on the pressure sensitive touch-enabledscreen; determine one layer of the first and second layers to which todirect the input based on a comparison of the physical pressure level ofthe input to the first and second ranges of physical pressure levels;and direct the input to the determined layer.
 11. The computer readablestorage medium of claim 10, wherein the instructions are furtherexecutable by a processor to: display the first layer using a first setof display attributes, wherein the first set of display attributesincludes an attribute to display the first layer as a solid background;and display the second layer using a second set of display attributes,wherein the second set of display attributes includes an attribute todisplay the second layer as an at least partially-transparent overlay ontop of the first layer so that both the first and second layers arevisible at the location.
 12. The computer readable storage medium ofclaim 11, wherein the instructions are further executable by a processorto: prepare a plurality of sets of display attributes, including thefirst and second sets of display attributes; and assign a unique one ofthe layers to each of the plurality of sets of display attributes. 13.The computer readable storage medium of claim 10, wherein theinstructions are further executable by a processor to: receive asubsequent input at a second location of the pressure sensitivetouch-enabled screen; determine that a single layer is being displayedat the second location; and direct the subsequent input to the singlelayer regardless of the physical pressure applied.
 14. The computerreadable storage medium of claim 10, wherein the instructions arefurther executable by a processor to: visually indicate the one of thefirst and second layers to which to direct the input, wherein the visualindication is removed after a period of time following the reception ofthe input.
 15. The computer readable storage medium of claim 14, whereinthe visual indication is removed after a threshold of time following thereception of the input.
 16. The computer readable storage medium ofclaim 10, wherein the layer of the first and second layers determined tobe the layer to which to direct input is determined by determining thatthe physical pressure level of the input is within the range of one ofthe first range and the second range.
 17. The computer readable storagemedium of claim 10, wherein the first layer is a browser window for abrowser application and the second layer is a representation of akeyboard.
 18. The computer readable storage medium of claim 10, whereinat least one of the first and second ranges are established at least inpart based on user input during a configuration of the respectiveapplication associated with the respective at least one of the first andsecond ranges to be established, the input being input to the display ofa first physical pressure level, the first physical pressure level beingused to at least in part establish the respective range by establishingthe respective range to include the first physical pressure level.
 19. Adevice, comprising: a touch-enabled display; a processor; and a memoryaccessible to the processor and bearing instructions executable by theprocessor to: receive an input at a location on the touch-enableddisplay; identify at east first and second windows being presented atthe location, wherein the first window is associated with a first rangeof pressure levels and the second window is associated with a secondrange of pressure levels different from the first range of pressurelevels; determine a pressure level pertaining to the input on thetouch-enabled display; determine one window of the first and secondwindows to which to direct the input based on a determination of whichof the first and second ranges of pressure levels the pressure level ofthe input is within; and direct the input to the determined window. 20.The device of claim 19, wherein the first window is associated with afirst application and wherein the second window is associated with asecond application different from the first application.